Personal Tutor
How do I change the date or time of a meeting that is already set up?
If a meeting is already set up then the best way to change the time is to cancel the existing meeting and set up a new meeting set for the new time.
On cancellation of a meeting both you and the student will receive email notification with a button to remove the meeting from your Outlook calendar.
NB The Personal Tutor has to be using Outlook for the calendar update to work.